22066211 has 8 divisors (see below), whose sum is σ = 22333920. Its totient is φ = 21800448.

The previous prime is 22066189. The next prime is 22066229. The reversal of 22066211 is 11266022.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22066211 - 2⁶ = 22066147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22666211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37955 + ... + 38531.

It is an arithmetic number, because the mean of its divisors is an integer number (2791740).

Almost surely, 2^22066211 is an apocalyptic number.

22066211 is a deficient number, since it is larger than the sum of its proper divisors (267709).

22066211 is a wasteful number, since it uses less digits than its factorization.

22066211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 973.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 22066211 is about 4697.4685736043. The cubic root of 22066211 is about 280.4847512742.

The spelling of 22066211 in words is "twenty-two million, sixty-six thousand, two hundred eleven".